Re: [drm:hsw_unclaimed_reg_detect] *ERROR* Unclaimed register detected. Please use the i915.mmio_debug=1 to debug this problem.

[Imre Deak <imre.deak@intel.com>]

On Mon, 2014-12-15 at 16:56 +0100, Toralf Förster wrote:
> On 12/15/2014 11:16 AM, Daniel Vetter wrote:
> > On Mon, Dec 15, 2014 at 10:24:53AM +0100, Toralf Förster wrote:
> >> On 12/15/2014 08:45 AM, Daniel Vetter wrote:
> >>> Nah, this is just a kernel cmdlineoption. So please boot with
> >>> i915.mmio_debug=1 added to the kernel cmdline, reproduce and then grab the
> >>> entire dmesg.
> >>>
> >>> Thanks, Daniel
> >>
> >> errm, I did it, rebooted, suspended and then the WARNING appeared:
> >>
> >>> Dec 12 13:22:13 t44 kernel: ------------[ cut here ]------------
> >>> Dec 12 13:22:13 t44 kernel: WARNING: CPU: 3 PID: 2750 at drivers/gpu/drm/i915/intel_uncore.c:528 hsw_unclaimed_reg_debug.isra.11+0x8d/0xa0 [i915]()
> > 
> > Annoying, the unclaimed register write seems to happen before we do
> > anything really. Can you please test what happens when you disable all
> > sound modules?
> > -Daniel
> > 
> ofc, this is kernel 3.18 with same config, and sound just set to "n" :

The WARN should be fixed by the following two commits (they are only in
drm-intel-nightly):

commit 1a5df187172a92ffdf8dc89988154d512d66a896
Author: Paulo Zanoni <paulo.r.zanoni@intel.com>
Date:   Mon Oct 27 17:54:32 2014 -0200

    drm/i915: kill intel_resume_prepare()

commit efee833a2d0a69dfa2c4ec28377b00803a0f9a60
Author: Paulo Zanoni <paulo.r.zanoni@intel.com>
Date:   Mon Oct 27 17:54:33 2014 -0200

    drm/i915: run hsw_disable_pc8() later on resume

They need rebasing on 3.18.

--Imre

> 
> Dec 15 16:51:45 t44 kernel: PM: Syncing filesystems ... done.
> Dec 15 16:51:45 t44 kernel: Freezing user space processes ... (elapsed 0.001 seconds) done.
> Dec 15 16:51:45 t44 kernel: PM: Preallocating image memory... done (allocated 2925601 pages)
> Dec 15 16:51:48 t44 kernel: PM: Allocated 11702404 kbytes in 3.07 seconds (3811.85 MB/s)
> Dec 15 16:51:48 t44 kernel: Freezing remaining freezable tasks ... (elapsed 0.001 seconds) done.
> Dec 15 16:51:48 t44 kernel: Suspending console(s) (use no_console_suspend to debug)
> Dec 15 16:51:48 t44 kernel: wlp3s0: deauthenticating from 08:96:d7:05:f9:2a by local choice (Reason: 3=DEAUTH_LEAVING)
> Dec 15 16:51:48 t44 kernel: dvb-usb: Terratec Cinergy T USB XXS (HD)/ T3 successfully deinitialized and disconnected.
> Dec 15 16:51:48 t44 kernel: cfg80211: Calling CRDA to update world regulatory domain
> Dec 15 16:51:48 t44 kernel: PM: freeze of devices complete after 203.802 msecs
> Dec 15 16:51:48 t44 kernel: PM: late freeze of devices complete after 7.757 msecs
> Dec 15 16:51:48 t44 kernel: PM: noirq freeze of devices complete after 1.168 msecs
> Dec 15 16:51:48 t44 kernel: ACPI: Preparing to enter system sleep state S4
> Dec 15 16:51:48 t44 kernel: PM: Saving platform NVS memory
> Dec 15 16:51:48 t44 kernel: Disabling non-boot CPUs ...
> Dec 15 16:51:48 t44 kernel: intel_pstate CPU 1 exiting
> Dec 15 16:51:48 t44 kernel: kvm: disabling virtualization on CPU1
> Dec 15 16:51:48 t44 kernel: smpboot: CPU 1 is now offline
> Dec 15 16:51:48 t44 kernel: intel_pstate CPU 2 exiting
> Dec 15 16:51:48 t44 kernel: kvm: disabling virtualization on CPU2
> Dec 15 16:51:48 t44 kernel: smpboot: CPU 2 is now offline
> Dec 15 16:51:48 t44 kernel: intel_pstate CPU 3 exiting
> Dec 15 16:51:48 t44 kernel: kvm: disabling virtualization on CPU3
> Dec 15 16:51:48 t44 kernel: smpboot: CPU 3 is now offline
> Dec 15 16:51:48 t44 kernel: PM: Creating hibernation image:
> Dec 15 16:51:48 t44 kernel: PM: Need to copy 120966 pages
> Dec 15 16:51:48 t44 kernel: PM: Restoring platform NVS memory
> Dec 15 16:51:48 t44 kernel: Enabling non-boot CPUs ...
> Dec 15 16:51:48 t44 kernel: x86: Booting SMP configuration:
> Dec 15 16:51:48 t44 kernel: smpboot: Booting Node 0 Processor 1 APIC 0x1
> Dec 15 16:51:48 t44 kernel: kvm: enabling virtualization on CPU1
> Dec 15 16:51:48 t44 kernel: CPU1 is up
> Dec 15 16:51:48 t44 kernel: smpboot: Booting Node 0 Processor 2 APIC 0x2
> Dec 15 16:51:48 t44 kernel: kvm: enabling virtualization on CPU2
> Dec 15 16:51:48 t44 kernel: CPU2 is up
> Dec 15 16:51:48 t44 kernel: smpboot: Booting Node 0 Processor 3 APIC 0x3
> Dec 15 16:51:48 t44 kernel: kvm: enabling virtualization on CPU3
> Dec 15 16:51:48 t44 kernel: CPU3 is up
> Dec 15 16:51:48 t44 kernel: ACPI: Waking up from system sleep state S4
> Dec 15 16:51:48 t44 kernel: thinkpad_acpi: EC reports that Thermal Table has changed
> Dec 15 16:52:40 t44 dhcpcd[2372]: wlp3s0: carrier lost
> Dec 15 16:51:48 t44 kernel: acpi LNXPOWER:02: Turning OFF
> Dec 15 16:51:48 t44 kernel: PM: noirq restore of devices complete after 2.297 msecs
> Dec 15 16:51:48 t44 kernel: ------------[ cut here ]------------
> Dec 15 16:51:48 t44 kernel: WARNING: CPU: 2 PID: 3416 at drivers/gpu/drm/i915/intel_uncore.c:528 hsw_unclaimed_reg_debug.isra.11+0x80/0xa0 [i915]()
> Dec 15 16:51:48 t44 kernel: Unclaimed register detected before reading register 0x130040
> Dec 15 16:51:48 t44 kernel: Modules linked in: ctr ccm ipt_MASQUERADE nf_nat_masquerade_ipv4 iptable_nat nf_nat_ipv4 nf_nat xt_multiport nf_log_ipv4 nf_log_common xt_LOG xt_limit ipt_REJECT nf_reject_ipv4 nf_conntrack_ipv4 nf_defrag_ipv4 xt_tcpudp xt_recent xt_conntrack iptable_filter ip_tables x_tables nf_conntrack_ftp nf_conntrack af_packet rc_dib0700_rc5 dib7000p hid_generic hid_cherry usbhid hid usblp dvb_usb_dib0700 dib3000mc dvb_usb uvcvideo dvb_core videobuf2_vmalloc videobuf2_memops dib0070 videobuf2_core dib7000m dibx000_common v4l2_common dib0090 videodev rc_core arc4 x86_pkg_temp_thermal coretemp iTCO_wdt kvm_intel evdev iwlmvm kvm mac80211 aesni_intel aes_x86_64 glue_helper lrw gf128mul ablk_helper cryptd psmouse iwlwifi atkbd wmi cfg80211 i915 thermal cfbfillrect cfbimgblt i2c_algo_bit fbcon bitblit
> Dec 15 16:51:48 t44 kernel:  cfbcopyarea softcursor font thinkpad_acpi nvram ac drm_kms_helper battery rfkill tpm_tis tpm drm intel_gtt video xhci_pci e1000e ehci_pci agpgart xhci_hcd processor ehci_hcd fb ptp i2c_i801 lpc_ich usbcore thermal_sys i2c_core button fbdev pps_core usb_common mfd_core hwmon [last unloaded: microcode]
> Dec 15 16:51:48 t44 kernel: CPU: 2 PID: 3416 Comm: kworker/u8:98 Not tainted 3.18.0 #4
> Dec 15 16:51:48 t44 kernel: Hardware name: LENOVO 20AQCTO1WW/20AQCTO1WW, BIOS GJET80WW (2.30 ) 10/20/2014
> Dec 15 16:51:48 t44 kernel: Workqueue: events_unbound async_run_entry_fn
> Dec 15 16:51:48 t44 kernel:  0000000000000009 ffff88032b7a3af8 ffffffff814845c9 ffffffff81a3c380
> Dec 15 16:51:48 t44 kernel:  ffff88032b7a3b48 ffff88032b7a3b38 ffffffff81047751 ffff88032b7a3b18
> Dec 15 16:51:48 t44 kernel:  ffff88032d5e0060 0000000000130040 0000000000000000 0000000000130040
> Dec 15 16:51:48 t44 kernel: Call Trace:
> Dec 15 16:51:48 t44 kernel:  [<ffffffff814845c9>] dump_stack+0x46/0x58
> Dec 15 16:51:48 t44 kernel:  [<ffffffff81047751>] warn_slowpath_common+0x81/0xa0
> Dec 15 16:51:48 t44 kernel:  [<ffffffff810477b6>] warn_slowpath_fmt+0x46/0x50
> Dec 15 16:51:48 t44 kernel:  [<ffffffffc06f4430>] hsw_unclaimed_reg_debug.isra.11+0x80/0xa0 [i915]
> Dec 15 16:51:48 t44 kernel:  [<ffffffffc06f6ffe>] gen6_read32+0x5e/0x140 [i915]
> Dec 15 16:51:48 t44 kernel:  [<ffffffffc070be9c>] hsw_disable_pc8+0x3c/0x360 [i915]
> Dec 15 16:51:48 t44 kernel:  [<ffffffffc06ae5cb>] intel_resume_prepare+0x5bb/0x5e0 [i915]
> Dec 15 16:51:48 t44 kernel:  [<ffffffffc06ae800>] ? i915_resume_early+0x50/0x50 [i915]
> Dec 15 16:51:48 t44 kernel:  [<ffffffffc06ae800>] ? i915_resume_early+0x50/0x50 [i915]
> Dec 15 16:51:48 t44 kernel:  [<ffffffffc06ae743>] i915_drm_thaw_early+0x23/0x70 [i915]
> Dec 15 16:51:48 t44 kernel:  [<ffffffffc06ae7f7>] i915_resume_early+0x47/0x50 [i915]
> Dec 15 16:51:48 t44 kernel:  [<ffffffffc06ae815>] i915_pm_resume_early+0x15/0x20 [i915]
> Dec 15 16:51:48 t44 kernel:  [<ffffffff8136914e>] dpm_run_callback+0x2e/0xf0
> Dec 15 16:51:48 t44 kernel:  [<ffffffff81369444>] device_resume_early+0x94/0x150
> Dec 15 16:51:48 t44 kernel:  [<ffffffff81369521>] async_resume_early+0x21/0x50
> Dec 15 16:51:48 t44 kernel:  [<ffffffff81064f49>] async_run_entry_fn+0x39/0xe0
> Dec 15 16:51:48 t44 kernel:  [<ffffffff8105dd24>] process_one_work+0x144/0x3d0
> Dec 15 16:51:48 t44 kernel:  [<ffffffff8105e0cb>] worker_thread+0x11b/0x490
> Dec 15 16:51:48 t44 kernel:  [<ffffffff8105dfb0>] ? process_one_work+0x3d0/0x3d0
> Dec 15 16:51:48 t44 kernel:  [<ffffffff810628e1>] kthread+0xe1/0x100
> Dec 15 16:51:48 t44 kernel:  [<ffffffff81062800>] ? kthread_create_on_node+0x1b0/0x1b0
> Dec 15 16:51:48 t44 kernel:  [<ffffffff8148af2c>] ret_from_fork+0x7c/0xb0
> Dec 15 16:51:48 t44 kernel:  [<ffffffff81062800>] ? kthread_create_on_node+0x1b0/0x1b0
> Dec 15 16:51:48 t44 kernel: ---[ end trace 747ebac05b92dd2c ]---
> Dec 15 16:51:48 t44 kernel: PM: early restore of devices complete after 5.816 msecs
> Dec 15 16:51:48 t44 kernel: usb usb2: root hub lost power or was reset
> Dec 15 16:51:48 t44 kernel: usb usb3: root hub lost power or was reset
> Dec 15 16:51:48 t44 kernel: usb usb1: root hub lost power or was reset
> Dec 15 16:51:48 t44 kernel: iwlwifi 0000:03:00.0: RF_KILL bit toggled to enable radio.
> Dec 15 16:51:48 t44 kernel: xhci_hcd 0000:00:14.0: irq 43 for MSI/MSI-X
> Dec 15 16:51:48 t44 kernel: sd 0:0:0:0: [sda] Starting disk
> Dec 15 16:51:48 t44 kernel: rtc_cmos 00:02: System wakeup disabled by ACPI
> Dec 15 16:51:48 t44 kernel: ehci-pci 0000:00:1d.0: cache line size of 64 is not supported
> Dec 15 16:51:48 t44 kernel: e1000e 0000:00:19.0: irq 44 for MSI/MSI-X
> Dec 15 16:51:48 t44 kernel: usb 3-3: reset SuperSpeed USB device number 2 using xhci_hcd
> Dec 15 16:51:49 t44 kernel: xhci_hcd 0000:00:14.0: xHCI xhci_drop_endpoint called with disabled ep ffff88032dd916c0
> Dec 15 16:51:49 t44 kernel: ata1: SATA link up 6.0 Gbps (SStatus 133 SControl 300)
> Dec 15 16:51:49 t44 kernel: ata1.00: ACPI cmd ef/02:00:00:00:00:a0 (SET FEATURES) succeeded
> Dec 15 16:51:49 t44 kernel: ata1.00: ACPI cmd f5/00:00:00:00:00:a0 (SECURITY FREEZE LOCK) filtered out
> Dec 15 16:51:49 t44 kernel: ata1.00: ACPI cmd ef/10:09:00:00:00:a0 (SET FEATURES) succeeded
> Dec 15 16:51:49 t44 kernel: ata1.00: supports DRM functions and may not be fully accessible
> Dec 15 16:51:49 t44 kernel: ata1.00: ACPI cmd ef/02:00:00:00:00:a0 (SET FEATURES) succeeded
> Dec 15 16:51:49 t44 kernel: ata1.00: ACPI cmd f5/00:00:00:00:00:a0 (SECURITY FREEZE LOCK) filtered out
> Dec 15 16:51:49 t44 kernel: ata1.00: ACPI cmd ef/10:09:00:00:00:a0 (SET FEATURES) succeeded
> Dec 15 16:51:49 t44 kernel: usb 1-1: reset high-speed USB device number 2 using ehci-pci
> Dec 15 16:51:49 t44 kernel: ata1.00: supports DRM functions and may not be fully accessible
> Dec 15 16:51:49 t44 kernel: ata1.00: configured for UDMA/133
> Dec 15 16:51:49 t44 kernel: iwlwifi 0000:03:00.0: L1 Enabled - LTR Enabled
> Dec 15 16:51:49 t44 kernel: iwlwifi 0000:03:00.0: L1 Enabled - LTR Enabled
> Dec 15 16:51:49 t44 kernel: usb 2-7: reset full-speed USB device number 5 using xhci_hcd
> Dec 15 16:51:49 t44 kernel: xhci_hcd 0000:00:14.0: xHCI xhci_drop_endpoint called with disabled ep ffff8800ad485900
> Dec 15 16:51:49 t44 kernel: xhci_hcd 0000:00:14.0: xHCI xhci_drop_endpoint called with disabled ep ffff8800ad485948
> Dec 15 16:51:49 t44 kernel: xhci_hcd 0000:00:14.0: xHCI xhci_drop_endpoint called with disabled ep ffff8800ad485990
> Dec 15 16:51:49 t44 kernel: xhci_hcd 0000:00:14.0: xHCI xhci_drop_endpoint called with disabled ep ffff8800ad4e2cc0
> Dec 15 16:51:49 t44 kernel: xhci_hcd 0000:00:14.0: xHCI xhci_drop_endpoint called with disabled ep ffff8800ad4e2d08
> Dec 15 16:51:49 t44 kernel: usb 2-6: reset full-speed USB device number 3 using xhci_hcd
> Dec 15 16:51:49 t44 kernel: usb 1-1.5: reset full-speed USB device number 3 using ehci-pci
> Dec 15 16:51:49 t44 kernel: usb 1-1.5: No LPM exit latency info found, disabling LPM.
> Dec 15 16:51:49 t44 kernel: xhci_hcd 0000:00:14.0: xHCI xhci_drop_endpoint called with disabled ep ffff88032ec5e200
> Dec 15 16:51:49 t44 kernel: xhci_hcd 0000:00:14.0: xHCI xhci_drop_endpoint called with disabled ep ffff88032ec5e248
> Dec 15 16:51:49 t44 kernel: xhci_hcd 0000:00:14.0: xHCI xhci_drop_endpoint called with disabled ep ffff88032ec5e290
> Dec 15 16:51:49 t44 kernel: xhci_hcd 0000:00:14.0: xHCI xhci_drop_endpoint called with disabled ep ffff88032ec5e2d8
> Dec 15 16:51:49 t44 kernel: usb 2-8: reset high-speed USB device number 7 using xhci_hcd
> Dec 15 16:51:49 t44 kernel: xhci_hcd 0000:00:14.0: xHCI xhci_drop_endpoint called with disabled ep ffff88032cd3eb40
> Dec 15 16:51:50 t44 kernel: usb 2-3: reset high-speed USB device number 11 using xhci_hcd
> Dec 15 16:51:50 t44 kernel: xhci_hcd 0000:00:14.0: xHCI xhci_drop_endpoint called with disabled ep ffff8800958b25a0
> Dec 15 16:51:50 t44 kernel: usb 2-3.3: reset high-speed USB device number 12 using xhci_hcd
> Dec 15 16:51:50 t44 kernel: xhci_hcd 0000:00:14.0: xHCI xhci_drop_endpoint called with disabled ep ffff88009d005e00
> Dec 15 16:51:50 t44 kernel: xhci_hcd 0000:00:14.0: xHCI xhci_drop_endpoint called with disabled ep ffff88009d005e48
> Dec 15 16:51:50 t44 kernel: xhci_hcd 0000:00:14.0: xHCI xhci_drop_endpoint called with disabled ep ffff88009d005e90
> Dec 15 16:51:50 t44 kernel: xhci_hcd 0000:00:14.0: xHCI xhci_drop_endpoint called with disabled ep ffff88009d005ed8
> Dec 15 16:51:50 t44 kernel: usb 2-3.4: reset high-speed USB device number 13 using xhci_hcd
> Dec 15 16:51:50 t44 kernel: dmar: DRHD: handling fault status reg 2
> Dec 15 16:51:50 t44 kernel: dmar: DMAR:[DMA Write] Request device [00:02.0] fault addr 73ff000000 \x0aDMAR:[fault reason 05] PTE Write access is not set
> Dec 15 16:51:50 t44 kernel: xhci_hcd 0000:00:14.0: xHCI xhci_drop_endpoint called with disabled ep ffff88032b8959c0
> Dec 15 16:51:51 t44 kernel: usb 2-3.4.3: reset full-speed USB device number 15 using xhci_hcd
> Dec 15 16:51:51 t44 kernel: xhci_hcd 0000:00:14.0: xHCI xhci_drop_endpoint called with disabled ep ffff8802ec39b348
> Dec 15 16:51:51 t44 kernel: xhci_hcd 0000:00:14.0: xHCI xhci_drop_endpoint called with disabled ep ffff8802ec39b300
> Dec 15 16:51:51 t44 kernel: usblp0: removed
> Dec 15 16:51:51 t44 kernel: usb 2-3.4.2: reset low-speed USB device number 14 using xhci_hcd
> Dec 15 16:51:51 t44 kernel: xhci_hcd 0000:00:14.0: xHCI xhci_drop_endpoint called with disabled ep ffff8800958b2c00
> Dec 15 16:51:51 t44 kernel: usb 2-3.4.2: ep 0x81 - rounding interval to 64 microframes, ep desc says 80 microframes
> Dec 15 16:51:51 t44 kernel: usb 2-3.4.1: reset low-speed USB device number 16 using xhci_hcd
> Dec 15 16:51:52 t44 kernel: xhci_hcd 0000:00:14.0: xHCI xhci_drop_endpoint called with disabled ep ffff8800958b2de0
> Dec 15 16:51:52 t44 kernel: xhci_hcd 0000:00:14.0: xHCI xhci_drop_endpoint called with disabled ep ffff8800958b27e0
> Dec 15 16:51:52 t44 kernel: usb 2-3.4.1: ep 0x81 - rounding interval to 64 microframes, ep desc says 80 microframes
> Dec 15 16:51:52 t44 kernel: usb 2-3.4.1: ep 0x82 - rounding interval to 64 microframes, ep desc says 80 microframes
> Dec 15 16:51:52 t44 kernel: PM: restore of devices complete after 3426.405 msecs
> Dec 15 16:51:52 t44 kernel: usblp 2-3.4.3:1.0: usblp0: USB Bidirectional printer dev 15 if 0 alt 0 proto 2 vid 0x043D pid 0x0078
> Dec 15 16:51:52 t44 kernel: dvb-usb: found a 'Terratec Cinergy T USB XXS (HD)/ T3' in cold state, will try to load a firmware
> Dec 15 16:51:52 t44 kernel: ------------[ cut here ]------------
> Dec 15 16:51:52 t44 kernel: WARNING: CPU: 1 PID: 3586 at drivers/base/firmware_class.c:1127 _request_firmware+0x696/0x6b0()
> Dec 15 16:51:52 t44 kernel: Modules linked in: ctr ccm ipt_MASQUERADE nf_nat_masquerade_ipv4 iptable_nat nf_nat_ipv4 nf_nat xt_multiport nf_log_ipv4 nf_log_common xt_LOG xt_limit ipt_REJECT nf_reject_ipv4 nf_conntrack_ipv4 nf_defrag_ipv4 xt_tcpudp xt_recent xt_conntrack iptable_filter ip_tables x_tables nf_conntrack_ftp nf_conntrack af_packet rc_dib0700_rc5 dib7000p hid_generic hid_cherry usbhid hid usblp dvb_usb_dib0700 dib3000mc dvb_usb uvcvideo dvb_core videobuf2_vmalloc videobuf2_memops dib0070 videobuf2_core dib7000m dibx000_common v4l2_common dib0090 videodev rc_core arc4 x86_pkg_temp_thermal coretemp iTCO_wdt kvm_intel evdev iwlmvm kvm mac80211 aesni_intel aes_x86_64 glue_helper lrw gf128mul ablk_helper cryptd psmouse iwlwifi atkbd wmi cfg80211 i915 thermal cfbfillrect cfbimgblt i2c_algo_bit fbcon bitblit
> Dec 15 16:51:52 t44 kernel:  cfbcopyarea softcursor font thinkpad_acpi nvram ac drm_kms_helper battery rfkill tpm_tis tpm drm intel_gtt video xhci_pci e1000e ehci_pci agpgart xhci_hcd processor ehci_hcd fb ptp i2c_i801 lpc_ich usbcore thermal_sys i2c_core button fbdev pps_core usb_common mfd_core hwmon [last unloaded: microcode]
> Dec 15 16:51:52 t44 kernel: CPU: 1 PID: 3586 Comm: Fn.sh Tainted: G        W      3.18.0 #4
> Dec 15 16:51:52 t44 kernel: Hardware name: LENOVO 20AQCTO1WW/20AQCTO1WW, BIOS GJET80WW (2.30 ) 10/20/2014
> Dec 15 16:51:52 t44 kernel:  0000000000000009 ffff8802e39d39f8 ffffffff814845c9 0000000000000000
> Dec 15 16:51:52 t44 kernel:  0000000000000000 ffff8802e39d3a38 ffffffff81047751 ffff8802e39d3a28
> Dec 15 16:51:52 t44 kernel:  ffffffffc04c3c56 ffff880097aa30a0 ffff8802f5ff7700 ffff8802e39d3b20
> Dec 15 16:51:52 t44 kernel: Call Trace:
> Dec 15 16:51:52 t44 kernel:  [<ffffffff814845c9>] dump_stack+0x46/0x58
> Dec 15 16:51:52 t44 kernel:  [<ffffffff81047751>] warn_slowpath_common+0x81/0xa0
> Dec 15 16:51:52 t44 kernel:  [<ffffffff8104782a>] warn_slowpath_null+0x1a/0x20
> Dec 15 16:51:52 t44 kernel:  [<ffffffff8136df96>] _request_firmware+0x696/0x6b0
> Dec 15 16:51:52 t44 kernel:  [<ffffffff8108c3e0>] ? vprintk_emit+0x2a0/0x4d0
> Dec 15 16:51:52 t44 kernel:  [<ffffffff8136dfe5>] request_firmware+0x35/0x50
> Dec 15 16:51:52 t44 kernel:  [<ffffffffc04612e4>] dvb_usb_download_firmware+0x34/0xe0 [dvb_usb]
> Dec 15 16:51:52 t44 kernel:  [<ffffffffc0461a4c>] dvb_usb_device_init+0x53c/0x610 [dvb_usb]
> Dec 15 16:51:52 t44 kernel:  [<ffffffffc04bd33a>] dib0700_probe+0x6a/0x100 [dvb_usb_dib0700]
> Dec 15 16:51:52 t44 kernel:  [<ffffffffc03cc65f>] usb_probe_interface+0x1bf/0x2c0 [usbcore]
> Dec 15 16:51:52 t44 kernel:  [<ffffffffc03bc2f0>] ? usb_dev_suspend+0x20/0x20 [usbcore]
> Dec 15 16:51:52 t44 kernel:  [<ffffffff8135eddf>] driver_probe_device+0x7f/0x240
> Dec 15 16:51:52 t44 kernel:  [<ffffffff8135efa0>] ? driver_probe_device+0x240/0x240
> Dec 15 16:51:52 t44 kernel:  [<ffffffff8135efdb>] __device_attach+0x3b/0x40
> Dec 15 16:51:52 t44 kernel:  [<ffffffff8135d043>] bus_for_each_drv+0x63/0xa0
> Dec 15 16:51:52 t44 kernel:  [<ffffffff8135ed18>] device_attach+0x98/0xb0
> Dec 15 16:51:52 t44 kernel:  [<ffffffffc03cc271>] rebind_marked_interfaces.isra.11+0x81/0xb0 [usbcore]
> Dec 15 16:51:52 t44 kernel:  [<ffffffffc03cc2f0>] usb_resume_complete+0x20/0x30 [usbcore]
> Dec 15 16:51:52 t44 kernel:  [<ffffffffc03bc2fe>] usb_dev_complete+0xe/0x10 [usbcore]
> Dec 15 16:51:52 t44 kernel:  [<ffffffff8136aaf2>] dpm_complete+0x102/0x330
> Dec 15 16:51:52 t44 kernel:  [<ffffffff81083d1e>] hibernation_snapshot+0xfe/0x360
> Dec 15 16:51:52 t44 kernel:  [<ffffffff81084613>] hibernate+0x133/0x1a0
> Dec 15 16:51:52 t44 kernel:  [<ffffffff81082044>] state_store+0xe4/0xf0
> Dec 15 16:51:52 t44 kernel:  [<ffffffff812b8bdf>] kobj_attr_store+0xf/0x20
> Dec 15 16:51:52 t44 kernel:  [<ffffffff811bed6d>] sysfs_kf_write+0x3d/0x50
> Dec 15 16:51:52 t44 kernel:  [<ffffffff811be834>] kernfs_fop_write+0xe4/0x160
> Dec 15 16:51:52 t44 kernel:  [<ffffffff811544d7>] vfs_write+0xb7/0x1f0
> Dec 15 16:51:52 t44 kernel:  [<ffffffff81154f69>] SyS_write+0x49/0xb0
> Dec 15 16:51:52 t44 kernel:  [<ffffffff8103acac>] ? do_page_fault+0xc/0x10
> Dec 15 16:51:52 t44 kernel:  [<ffffffff8148afd2>] system_call_fastpath+0x12/0x17
> Dec 15 16:51:52 t44 kernel: ---[ end trace 747ebac05b92dd2d ]---
> Dec 15 16:51:52 t44 kernel: usb 2-3.3: firmware: dvb-usb-dib0700-1.20.fw will not be loaded
> Dec 15 16:51:52 t44 kernel: dvb-usb: did not find the firmware file. (dvb-usb-dib0700-1.20.fw) Please see linux/Documentation/dvb/ for more details on firmware-problems. (-11)
> Dec 15 16:51:52 t44 kernel: Restarting tasks ... done.
> Dec 15 16:51:52 t44 kernel: dmar: DRHD: handling fault status reg 2
> Dec 15 16:51:52 t44 kernel: dmar: DMAR:[DMA Write] Request device [00:02.0] fault addr 73ff000000 \x0aDMAR:[fault reason 05] PTE Write access is not set
> Dec 15 16:51:52 t44 kernel: cfg80211: World regulatory domain updated:
> Dec 15 16:51:52 t44 kernel: cfg80211:  DFS Master region: unset
> Dec 15 16:51:52 t44 kernel: cfg80211:   (start_freq - end_freq @ bandwidth), (max_antenna_gain, max_eirp), (dfs_cac_time)
> Dec 15 16:51:52 t44 kernel: cfg80211:   (2402000 KHz - 2472000 KHz @ 40000 KHz), (300 mBi, 2000 mBm), (N/A)
> Dec 15 16:51:52 t44 kernel: cfg80211:   (2457000 KHz - 2482000 KHz @ 40000 KHz), (300 mBi, 2000 mBm), (N/A)
> Dec 15 16:51:52 t44 kernel: cfg80211:   (2474000 KHz - 2494000 KHz @ 20000 KHz), (300 mBi, 2000 mBm), (N/A)
> Dec 15 16:51:52 t44 kernel: cfg80211:   (5170000 KHz - 5250000 KHz @ 40000 KHz), (300 mBi, 2000 mBm), (N/A)
> Dec 15 16:51:52 t44 kernel: cfg80211:   (5735000 KHz - 5835000 KHz @ 40000 KHz), (300 mBi, 2000 mBm), (N/A)
> Dec 15 16:52:41 t44 wpa_cli[3657]: interface wlp3s0 DISCONNECTED
> Dec 15 16:52:41 t44 logger[3653]: ACPI event unhandled: ibm/hotkey LEN0068:00 00000080 00006030
> Dec 15 16:52:41 t44 wpa_cli[3659]: executing 'false /etc/init.d/net.wlp3s0 --quiet stop' failed
> Dec 15 16:52:41 t44 acpid[885]: input device has been disconnected, fd 6
> Dec 15 16:52:41 t44 logger[3670]: ACPI event unhandled: thermal_zone LNXTHERM:00 00000081 00000000
> Dec 15 16:52:41 t44 dhcpcd[2372]: wlp3s0: deleting route to 192.168.178.0/24
> Dec 15 16:52:41 t44 dhcpcd[2372]: wlp3s0: deleting default route via 192.168.178.1
> Dec 15 16:51:53 t44 kernel: ata1.00: exception Emask 0x10 SAct 0x480001fc SErr 0x280100 action 0x6 frozen
> Dec 15 16:51:53 t44 kernel: ata1.00: irq_stat 0x08000000, interface fatal error
> Dec 15 16:51:53 t44 kernel: ata1: SError: { UnrecovData 10B8B BadCRC }
> Dec 15 16:51:53 t44 kernel: ata1.00: failed command: READ FPDMA QUEUED
> Dec 15 16:51:53 t44 kernel: ata1.00: cmd 60/08:10:c8:af:c2/00:00:00:00:00/40 tag 2 ncq 4096 in\x0a         res 40/00:40:b8:6f:c0/00:00:00:00:00/40 Emask 0x10 (ATA bus error)
> Dec 15 16:51:53 t44 kernel: ata1.00: status: { DRDY }
> Dec 15 16:51:53 t44 kernel: ata1.00: failed command: READ FPDMA QUEUED
> Dec 15 16:51:53 t44 kernel: ata1.00: cmd 60/08:18:98:09:c0/00:00:00:00:00/40 tag 3 ncq 4096 in\x0a         res 40/00:40:b8:6f:c0/00:00:00:00:00/40 Emask 0x10 (ATA bus error)
> Dec 15 16:51:53 t44 kernel: ata1.00: status: { DRDY }
> Dec 15 16:51:53 t44 kernel: ata1.00: failed command: READ FPDMA QUEUED
> Dec 15 16:51:53 t44 kernel: ata1.00: cmd 60/08:20:18:06:c3/00:00:00:00:00/40 tag 4 ncq 4096 in\x0a         res 40/00:40:b8:6f:c0/00:00:00:00:00/40 Emask 0x10 (ATA bus error)
> Dec 15 16:51:53 t44 kernel: ata1.00: status: { DRDY }
> Dec 15 16:51:53 t44 kernel: ata1.00: failed command: READ FPDMA QUEUED
> Dec 15 16:51:53 t44 kernel: ata1.00: cmd 60/08:28:50:a1:c2/00:00:00:00:00/40 tag 5 ncq 4096 in\x0a         res 40/00:40:b8:6f:c0/00:00:00:00:00/40 Emask 0x10 (ATA bus error)
> Dec 15 16:51:53 t44 kernel: ata1.00: status: { DRDY }
> Dec 15 16:51:53 t44 kernel: ata1.00: failed command: READ FPDMA QUEUED
> Dec 15 16:51:53 t44 kernel: ata1.00: cmd 60/08:30:28:b7:bf/00:00:00:00:00/40 tag 6 ncq 4096 in\x0a         res 40/00:40:b8:6f:c0/00:00:00:00:00/40 Emask 0x10 (ATA bus error)
> Dec 15 16:51:53 t44 kernel: ata1.00: status: { DRDY }
> Dec 15 16:51:53 t44 kernel: ata1.00: failed command: READ FPDMA QUEUED
> Dec 15 16:51:53 t44 kernel: ata1.00: cmd 60/08:38:20:33:c4/00:00:00:00:00/40 tag 7 ncq 4096 in\x0a         res 40/00:40:b8:6f:c0/00:00:00:00:00/40 Emask 0x10 (ATA bus error)
> Dec 15 16:51:53 t44 kernel: ata1.00: status: { DRDY }
> Dec 15 16:51:53 t44 kernel: ata1.00: failed command: READ FPDMA QUEUED
> Dec 15 16:51:53 t44 kernel: ata1.00: cmd 60/08:40:b8:6f:c0/00:00:00:00:00/40 tag 8 ncq 4096 in\x0a         res 40/00:40:b8:6f:c0/00:00:00:00:00/40 Emask 0x10 (ATA bus error)
> Dec 15 16:51:53 t44 kernel: ata1.00: status: { DRDY }
> Dec 15 16:51:53 t44 kernel: ata1.00: failed command: READ FPDMA QUEUED
> Dec 15 16:51:53 t44 kernel: ata1.00: cmd 60/40:d8:80:b2:ad/00:00:00:00:00/40 tag 27 ncq 32768 in\x0a         res 40/00:40:b8:6f:c0/00:00:00:00:00/40 Emask 0x10 (ATA bus error)
> Dec 15 16:51:53 t44 kernel: ata1.00: status: { DRDY }
> Dec 15 16:51:53 t44 kernel: ata1.00: failed command: READ FPDMA QUEUED
> Dec 15 16:51:53 t44 kernel: ata1.00: cmd 60/08:f0:90:38:c4/00:00:00:00:00/40 tag 30 ncq 4096 in\x0a         res 40/00:40:b8:6f:c0/00:00:00:00:00/40 Emask 0x10 (ATA bus error)
> Dec 15 16:51:53 t44 kernel: ata1.00: status: { DRDY }
> Dec 15 16:51:53 t44 kernel: ata1: hard resetting link
> Dec 15 16:51:53 t44 kernel: ata1: SATA link up 6.0 Gbps (SStatus 133 SControl 300)
> Dec 15 16:51:53 t44 kernel: ata1.00: ACPI cmd ef/02:00:00:00:00:a0 (SET FEATURES) succeeded
> Dec 15 16:51:53 t44 kernel: ata1.00: ACPI cmd f5/00:00:00:00:00:a0 (SECURITY FREEZE LOCK) filtered out
> Dec 15 16:51:53 t44 kernel: ata1.00: ACPI cmd ef/10:09:00:00:00:a0 (SET FEATURES) succeeded
> Dec 15 16:51:53 t44 kernel: ata1.00: supports DRM functions and may not be fully accessible
> Dec 15 16:51:53 t44 kernel: ata1.00: ACPI cmd ef/02:00:00:00:00:a0 (SET FEATURES) succeeded
> Dec 15 16:51:53 t44 kernel: ata1.00: ACPI cmd f5/00:00:00:00:00:a0 (SECURITY FREEZE LOCK) filtered out
> Dec 15 16:51:53 t44 kernel: ata1.00: ACPI cmd ef/10:09:00:00:00:a0 (SET FEATURES) succeeded
> Dec 15 16:51:53 t44 kernel: ata1.00: supports DRM functions and may not be fully accessible
> Dec 15 16:51:53 t44 kernel: ata1.00: configured for UDMA/133
> Dec 15 16:51:53 t44 kernel: ata1: EH complete
> Dec 15 16:52:43 t44 ntpd[2760]: Deleting interface #3 wlp3s0, 192.168.178.24#123, interface stats: received=3, sent=3, dropped=0, active_time=14 secs
> Dec 15 16:52:43 t44 ntpd[2760]: 78.47.249.19 interface 192.168.178.24 -> (none)
> Dec 15 16:52:43 t44 ntpd[2760]: 5.9.80.114 interface 192.168.178.24 -> (none)
> Dec 15 16:52:43 t44 ntpd[2760]: 78.46.107.140 interface 192.168.178.24 -> (none)
> Dec 15 16:52:43 t44 ntpd[2760]: peers refreshed
> Dec 15 16:51:56 t44 kernel: wlp3s0: authenticate with 08:96:d7:05:f9:2a
> Dec 15 16:51:56 t44 kernel: wlp3s0: send auth to 08:96:d7:05:f9:2a (try 1/3)
> Dec 15 16:51:56 t44 kernel: wlp3s0: authenticated
> Dec 15 16:51:56 t44 kernel: wlp3s0: associate with 08:96:d7:05:f9:2a (try 1/3)
> Dec 15 16:51:56 t44 kernel: wlp3s0: RX AssocResp from 08:96:d7:05:f9:2a (capab=0x431 status=0 aid=1)
> Dec 15 16:51:56 t44 kernel: wlp3s0: associated
> Dec 15 16:51:56 t44 kernel: cfg80211: Calling CRDA for country: DE
> Dec 15 16:51:56 t44 kernel: cfg80211: Regulatory domain changed to country: DE
> Dec 15 16:51:56 t44 kernel: cfg80211:  DFS Master region: unset
> Dec 15 16:51:56 t44 kernel: cfg80211:   (start_freq - end_freq @ bandwidth), (max_antenna_gain, max_eirp), (dfs_cac_time)
> Dec 15 16:51:56 t44 kernel: cfg80211:   (2400000 KHz - 2483500 KHz @ 40000 KHz), (N/A, 2000 mBm), (N/A)
> Dec 15 16:51:56 t44 kernel: cfg80211:   (5150000 KHz - 5250000 KHz @ 40000 KHz), (N/A, 2000 mBm), (N/A)
> Dec 15 16:51:56 t44 kernel: cfg80211:   (5250000 KHz - 5350000 KHz @ 40000 KHz), (N/A, 2000 mBm), (0 s)
> Dec 15 16:51:56 t44 kernel: cfg80211:   (5470000 KHz - 5725000 KHz @ 40000 KHz), (N/A, 2698 mBm), (0 s)
> Dec 15 16:51:56 t44 kernel: cfg80211:   (57240000 KHz - 65880000 KHz @ 2160000 KHz), (N/A, 4000 mBm), (N/A)
> Dec 15 16:52:44 t44 dhcpcd[2372]: wlp3s0: carrier acquired
> Dec 15 16:52:44 t44 wpa_cli[3697]: interface wlp3s0 CONNECTED
> Dec 15 16:52:44 t44 wpa_cli[3699]: executing '/etc/init.d/net.wlp3s0 --quiet start' failed
> Dec 15 16:52:44 t44 dhcpcd[2372]: wlp3s0: IAID fc:9d:87:85
> Dec 15 16:52:44 t44 dhcpcd[2372]: wlp3s0: rebinding lease of 192.168.178.24
> Dec 15 16:52:49 t44 dhcpcd[2372]: wlp3s0: leased 192.168.178.24 for 864000 seconds
> Dec 15 16:52:49 t44 dhcpcd[2372]: wlp3s0: adding route to 192.168.178.0/24
> Dec 15 16:52:49 t44 dhcpcd[2372]: wlp3s0: adding default route via 192.168.178.1
> Dec 15 16:52:51 t44 ntpd[2760]: Listen normally on 4 wlp3s0 192.168.178.24 UDP 123
> Dec 15 16:52:51 t44 ntpd[2760]: peers refreshed
> 
> 


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